I think it is Bani who send the divorce paper.....Just to teach Mr. Wal;ia a lesson so that he will not use Pia-Pushkar (according to Bani) to get her back.......
If they showed that Jai believed that those papers were sent by Bani then I would have put my money on Bani not sending that paper....But as most of the people think especially Jai that Bani can not do it...The more I think they all are in for a rude shock. It is Bani.